the name given to an unknown man who murdered and cut up several prostitutes in Whitechapel, London, in 1888. The name was used in a letter by someone who claimed to be the killer but may have been a journalist. People have tried ever since to find out who he was, but without success. There have been many novels, plays and films about the murders.
جک ریپر, قاتل زنجیرهای لندن در سال ۱۸۸۸